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Planing Thick Maple?

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Forum topic by jasoncarpentry posted 09-25-2013 06:41 PM 669 views 0 times favorited 7 replies Add to Favorites Watch
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jasoncarpentry

111 posts in 1312 days


09-25-2013 06:41 PM

Topic tags/keywords: dw735 planning maple

I have a piece of maple 1.75” thick x 7’ wide x 38” long. It has a slight cup to it, but not much. My question is: Can I plane it directly using my DW735 planer? I know that, ideally, I need to shim up the board to take out all of the “rock” before planning the first side. But surely a board that stout won’t be forced down flat by the infeed / outfeed rollers!

Or will it? What’s been your experience?

-- Jim in Tennessee


7 replies so far

View Fred Hargis's profile

Fred Hargis

1794 posts in 1151 days


#1 posted 09-25-2013 08:08 PM

It won’t be forced down flat, but it will rock over to whatever point it balances when going through the planer. So it still won’t be flattened, but it will be smoothed up (mostly) on the planed side. It might also put a lot of pressure on the planer as it does that rocking.

-- Our village hasn't lost it's idiot, we sent 'em to Washington.

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404 - Not Found

2544 posts in 1627 days


#2 posted 09-25-2013 10:42 PM

Before you do anything, check for twist on the concave side with winding sticks. Correct any winding with a hand plane before putting it thru the planer.

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Tim

1271 posts in 619 days


#3 posted 09-26-2013 01:02 AM

No power planer here, just wondering. Won’t you have a good chance of planing twist (wind) into it if you don’t shim it? That’s what I see happening if you letter rip through without shims or doing renner’s method.

I guess it depends on what you mean by slight. What side were you planning on putting upwards?

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Wolfdaddy

259 posts in 492 days


#4 posted 09-26-2013 04:17 AM

If there is any twist in the board it will still be there after planing.

-- Your failures do not take away your possibilities.

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jasoncarpentry

111 posts in 1312 days


#5 posted 09-26-2013 11:40 AM

Everybody-

Thanks for the tips. Now that I’ve given it more thought, I’ve decided to use a sled and shim up the piece using wedges, secured in place with hot glue.

-- Jim in Tennessee

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ScrubPlane

187 posts in 853 days


#6 posted 09-28-2013 01:02 PM

Jim…The recommended method is to run the board across a jointer to create one ‘true’ flat side then run it through your planer to ‘true’ the opposite side.

View Bill White's profile

Bill White

3457 posts in 2618 days


#7 posted 09-28-2013 02:03 PM

Jim, the sled trick will certainly work. Just take light cuts.
Bill

-- bill@magraphics.us

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